Design and research of cooling system for 2.5 MW permanent magnet wind turbine

Shi, Ning-qiang; Wei, Min; Zhang, Lixin; Hu, Xue; Song, Bao Jun

doi:10.1016/j.renene.2020.10.023

Cited by 16 publications

(3 citation statements)

References 10 publications

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“…Against the backdrop of increasingly strict carbon tax legislations and rising energy prices, the International Energy Agency has determined that enhancements to renewable energy technology and improvements to energy efficiencies will be critical in the near term for achieving a 50% reduction in global emissions by 2030 [41]. Here, breakthroughs in thermal management devices and systems are integral to elevating the capabilities of the infrastructure used to generate and store clean energy, such as solar panels [42,43], wind turbines [44,45], geothermal energy systems [46,47], hydrogen generation and storage [48][49][50][51], and nuclear power plants [52,53]. Moreover, in commercial air travel, which is currently the mode of transport with the fastest growth in greenhouse gas emissions [54], enhanced thermal management in gas turbine aero engines are key to reducing emission levels, increasing fuel economy and improving flight safety by preventing the build-up of carbon lacquer that can choke fuel lines [55].…”

Section: Common Examples and Operating Principlesmentioning

confidence: 99%

Recent Advances in the 3D Printing of Pure Copper Functional Structures for Thermal Management Devices

Choong,

Krishnan,

Gupta

2023

Technologies

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Thermal management devices such as heat exchangers and heat pipes are integral to safe and efficient performance in multiple engineering applications, including lithium-ion batteries, electric vehicles, electronics, and renewable energy. However, the functional designs of these devices have until now been created around conventional manufacturing constraints, and thermal performance has plateaued as a result. While 3D printing offers the design freedom to address these limitations, there has been a notable lack in high thermal conductivity materials beyond aluminium alloys. Recently, the 3D printing of pure copper to sufficiently high densities has finally taken off, due to the emergence of commercial-grade printers which are now equipped with 1 kW high-power lasers or short-wavelength lasers. Although the capabilities of these new systems appear ideal for processing pure copper as a bulk material, the performance of advanced thermal management devices are strongly dependent on topology-optimised filigree structures, which can require a very different processing window. Hence, this article presents a broad overview of the state-of-the-art in various additive manufacturing technologies used to fabricate pure copper functional filigree geometries comprising thin walls, lattice structures, and porous foams, and identifies opportunities for future developments in the 3D printing of pure copper for advanced thermal management devices.

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Section: Common Examples and Operating Principlesmentioning

confidence: 99%

Recent Advances in the 3D Printing of Pure Copper Functional Structures for Thermal Management Devices

Choong,

Krishnan,

Gupta

2023

Technologies

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“…[14] details the optimisation of axial-radial ventilation spacers as a means to reduce the operating temperature rise within the generator, achieving a 3.9 • C temperature drop due to improved ventilation. A combined air-cooled heat exchanger and a liquid-cooled heat sink was investigated in [15] in order to provide a 2.5 MW PMDD wind turbine generator with adequate cooling whilst ambient temperatures increase. A radial, forced ventilation cooling structure was developed in [16], enabling the stator core and winding temperatures to be controlled to around 89 • C and 95 • C, respectively.…”

Section: Introductionmentioning

confidence: 99%

Establishing the Importance of Operating Temperature in the Structural Integrity of Large-Scale Direct-Drive Wind Turbine Generators

Bichan,

Jack,

Jaen-Sola

2023

Machines

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Direct-drive generators are recognised for their low maintenance compared with conventional drivetrains, largely due to their fewer working parts. However, consequent to low-speed operation, these machines necessitate large diameters and are subject to rigorous stiffness requirements. Significant internal and external forces influence structural integrity, so to design them efficiently, consideration of all operating parameters is imperative. Therefore, through Finite Element Analysis, this paper sets out to quantify the influence of each operating parameter on the integrity of a parametrically optimised rotor structure under established operating conditions and introduces operating temperature to the current models. An environmental impact analysis of the optimised rotor structure and cost analyses of both the optimised and unaltered structures are carried out simultaneous to the design process. We find the use of parameter optimisation alone to be insufficient for rotor structures of this scale due to high increased mass and costs of manufacture. A significant finding from this study is that the thermal effects on large-scale direct-drive generator structures may be vastly underestimated and have a much greater influence on structural integrity than first thought.

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“…Natural convection heat transfer of cylindrical heat source is a theoretical research model abstracted from the heat dissipation problem of isolated phase enclosed current bus used in power plant [1]. The thermal effect of the enclosed current bus may cause local overheating of the bus, resulting in short circuit of the bus and other problems, which will seriously affect the normal and safe operation of the bus.…”

Section: Introductionmentioning

confidence: 99%

Numerical simulation of magnetic fluid thermal coupling of cylindrical heat source based on LBM lattice algorithm

Jie

Yang

2022

Phys. Scr.

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In order to improve the accuracy of numerical simulation of magnetic fluid thermal coupling of cylindrical heat source, a numerical simulation method of magnetic fluid thermal coupling of cylindrical heat source based on LBM grid algorithm was studied. Based on the theoretical model of natural convection and radiative heat dissipation of cylindrical heat source, the boundary conditions were set, and the thermal coupling performance of flow field and temperature field in the process of natural convection and radiative heat dissipation of cylindrical heat source was simulated by LBM grid algorithm. Simulation results show that the relative error between simulation results and experimental results is less than 1.5%. The results show that this method can accurately simulate the magnetofluid-thermal coupling of cylindrical heat source. With the increase of Rayleigh number, different numerical solutions appear: steady state solution when Rayleigh number is 105, periodic oscillation solution when Rayleigh number is 106, chaotic solution when Rayleigh number is 107.

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Design and research of cooling system for 2.5 MW permanent magnet wind turbine

Cited by 16 publications

References 10 publications

Recent Advances in the 3D Printing of Pure Copper Functional Structures for Thermal Management Devices

Recent Advances in the 3D Printing of Pure Copper Functional Structures for Thermal Management Devices

Establishing the Importance of Operating Temperature in the Structural Integrity of Large-Scale Direct-Drive Wind Turbine Generators

Numerical simulation of magnetic fluid thermal coupling of cylindrical heat source based on LBM lattice algorithm

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